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2 years ago

Could you guys help me?

Mathematics

2 answers:

LenKa [72]2 years ago

5 0

Answer:

15.6 feet

Step-by-step explanation:

I have no time to explain

kherson [118]2 years ago

3 0

The answer will be 15.6 feet

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four fifths of senior class went to prom. if 324 seniors went to prom, how many are there in the senior class

konstantin123 [22]

Answer:

The answer to your question is 405, because look divide 324 by 4 becasue thats how many fifths are being used then multiply the answer which is 81 by 405

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Please help!! I will give brainilest. look at the picture!

xxMikexx [17]

Answer:

Rows 126

last row has 41

last row is not full because its an odd number

Step-by-step explanation:

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3 years ago

If ABCD is dilated by a factor of 3, the

vaieri [72.5K]

Answer:

i think it would be (6, -6)

Step-by-step explanation:

if the letter d is already at (2, -2) you have to multiply those numbers by 3. that gives the coordinates (6, -6)

6 0

3 years ago

PLEASEEEE HELPPP MEEEE! NOWWWWW

umka2103 [35]

Answer:

The answer is -3

Step-by-step explanation:

First of all we find the difference -4-2 = -(4+2) and than we add the numbers answer is -6 .

$- \frac{6}{4 \div 2}$

4÷2=

$- \frac{6}{2}$

And than we simplify this fraction to 2 and find the answer -3. I would be glad if you choose my answer the best. Good lessons ♡

7 0

3 years ago

Perform each of the following computations using the measured quantities below.

mylen [45]

<h2>Question </h2>

Perform each of the following computations using the measured quantities below.

Write your final answer with the correct number of significant figures in proper scientific notation (one non-zero number to the left of the decimal point).

a. 917.2 + 45.63 = ___________

b. 3.423 x 10^-4 - 6.42 x 10^-3 =_________

<h2>Answer:</h2>

(a) 9.6 x 10²

(b) -6.1 x 10⁻³

<h2>Step-by-step explanation:</h2>

(a) 917.2 + 45.63

First add the two numbers as follows (ensure that the decimal numbers are well aligned);

9 1 7 . 2

+ 4 5 . 6 3

9 6 2 . 8 3

To write the result in a proper scientific notation (one non-zero number to the left of the decimal point),

i. Express the number is standard form

962.83 = 9.6283 x 10²

Note that;

From the result in (i)

9.6283 = mantissa

10 = base

² = power or exponent.

ii. Express the mantissa of the number in 1 decimal place.

9.6 x 10²

Therefore, the result in the proper scientific notation is 9.6 x 10².

(b) 3.423 x 10⁻⁴ - 6.42 x 10⁻³

Find the difference between the two numbers as follows;

i. Re-write the numbers so that they both have the same exponents:

0.3423 x 10⁻³ - 6.42 x 10⁻³

ii. Factor out 10⁻³

10⁻³(0.3423 - 6.42)

iii. Solve the bracket

10⁻³(-6.0777)

iv. Rewrite the result in (iii)

-6.0777 x 10⁻³

To write the result in a proper scientific notation (one non-zero number to the left of the decimal point),

i. Express the number is standard form

-6.0777 x 10⁻³ [already in standard form]

Note that;

From the result in (i)

-6.0777 = mantissa

10 = base

⁻³ = power or exponent.

ii. Express the mantissa of the number in 1 decimal place.

-6.1 x 10⁻³

Therefore, the result in the proper scientific notation is -6.1 x 10⁻³.

6 0

3 years ago